Pivoted-bucket conveyer



July 14, 1925. 1546.304

J. C. MERWIN PIVOTED BUCKET CONVEYER Filed April 18 1922 2 Sheets-Sheet 1 amenl oz,

July 14, 1925.

J. C. MERWIN PI-VOTED BUCKET CONVEYER Filed April 18 1922 2 Sheets-Sheet 2 contents, shown, as these m Patented July 14, 1925.

UNITED STATES JOHN CLIFFORD MERWIN, OF lYIILWAUK COMPANY, OF MILWAUKEE,

PIVOTED-BUC EE, WISCONSIN, ASSIGNOR TO CHAIN BELT WISCONSIN, A CORPORATION OF WISCONSIN.

KET CONVE'YER.

Application filed April 16, 1822. Serial No. 554,691.

To all whom it may concern;

Be it known that 1, JOHN CLIFFORD MERWIN, a citizen of the United States, residing at Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented certain new and useful Improvements in Pivoted-Bucket Conveyers, of which the following is a specificatlon.

The present invention relates to pivoted bucket conveyers and has for its object to improve the means for supporting the buckets and uniting them with the conveyer chains from which the buckets are suspended and by which they are moved.

In the accompanying drawings illustrating the invention Figure 1 is a top tion of a conveyer embodying parts being in section and parts away.

Fig. 2 is a side view of the same parts as shown in Fig.1.

Fig. 3 is a plan view, showin the bracket piece chain Fig. 4 is a perspective view of the bracket piece. I

Fig. 5 is a perspective view of dumping cam attached to the bucket.

In the acrompanying drawings, A, A designate parallel splrocket chains and a series of buckets, t es'e parts constituting a pivoted bucket conveyer of a type now well known, and in common use. e buckets, as is well known, are mounted so as to be free to swing on their supports in order that they may maintain horizontal positions during the major portions of thelr circuit but be free to be tipped for the purpose of discharging their -contents. The chains A engage with suitable dnving, supporting and directing wheels, but these are not shown since they constitute no part of the invention here claimed. Neither are the means for lo employed for tilting th plan View of a short seethe invention, broken partly in section, attached to em to discharge their ay be of well known or approved kind, and form no part of the present invention.

The buckets are provided with overlapping lips to close the spaces between the buckets, as is common in apparatus of the kind to which my invention pertains.

Each link of a chain A comprises a pair of side bars 2, and at the joints of the chain,

ading the buckets, nor those 111 supported upon the cross-connecting parts between the side bars, are wheels or rollers 3, such as are commonly used in these conveyers.

4, 4 designate the cross bars upon which the buckets B are pivotally hung. These bars have their opposite ends connected with corresponding links of the opposite chains and serve both as supports for the parallel with each other and in proper spaced relationship.

Each cross rod is connected at each end with a. link of the chain by means of a. separate bracket piece that extends rearwardly beyond the end thereof, where it is formed into a bearing 14, in which is seated one end of the rod 4. It is united securely to the inner face of an inner side bar 2 of a chain link by means of bolts, two bein usually suflicient, and these are designated 6 and 15. The bolt 6 serves the double purpose of a connecting pin for the adjacent links of the chain A, and a means for uniting the bracket to the side bar; and has a main cylindrical art, a tapering portion 8 near its inner en and a screw-threaded part 9 beyond the tapering portion. The pin 6 passes through a sleeve 7 that unites and is securely seated in the ends of the side bars of that link that is overlapped by the side bars of the adjacent link that is united thereto, as is common in chains of the kind shown in the drawings. The ta ering portion 8 of the pin is adapted to tigh fit a correspondingly tapering seat in the bracket 5.- A nut 10 is applied to the threaded ortion 9 of the pin and when this is screwe tight] against the inner face of the bracket it raws the tapering rtion 95 of the pin closely into its seat in the racket where it is held against rotation by frictional engagement therewith. A nut lock 12 holds the nut 10 in place and in turn is held P p P the bracket 6, between which the nut loc lies. A cotter in 11 is passed through the 'n 6 and holds in place outer end of t e p1 the outer side bars of the connected links.

An extension 16 projects forward from. the I strengthened bearing of the bracket piece 5 in which the connecting pin 6 is seated, an lies alongside of the inner face of the side bar 2, to which it is united by the bolt 15. 18 indicates a securing nut upon the bolt 15,

buckets and also to maintain the chains 65 V tly osition by the lugs 13 carried b 10 and 17 a nut lock for the nut, which nut lock is held in place by lugs 19 extending from the inner face of the extension16.

20 indicates a dumping cam secured to the end of bucket B. This cam may be of any usual or preferred shape, and as its operation is well understood in this art, it needs no description here. The upper portion of the cam is formed with a half bearing 21 for the-rod 4 that supports the bucket. The other half bearing for the rod, designated 23, is carried by a separable piece 22 bolted to the end of the bucket. When this piece is in place the two parts, 21 and 23, constitute a cylindrical bearing for the rod 4. The cam 20 is provided, on either side of the bearin section 21, with an outwardly extending ip or flange 24. These flanges are engaged by hooks 25 carried by the piece 22. By reason of the interlocking of the parts 24 and 25, the bolts 26 that unite the piece 22 to the end of the bucket are largely relieved of the strains incident to the welght of the bucket and its contents.

It will be seen that the connecting pin 6, when properly held in place by the nut 10, becomes in eflect an integral part of the bracket 5, so that it oscillates therewith and with the-links of the chain to which the bracket is secured, and within the sleeve 7 uniting the side bars of the other of the pair of links united by the said pin. The advantages of this construction are that by removing two succeeding pins 6 from the chain any chain link between them may be removed for repairs or replacement; or by removing the opposite pins 6, and the bolts 15, an entire bucket, with its supporting brackets 5, may be removed.

What I claim is:

1. In a pivoted bucket conveyer, the combination with a pair of chains arranged parallel to each other and conveyer buckets located between the chains, of cross rodson which-the buckets are pivotally supported, and separable brackets supportlng the ends of the cross rods and connecting them respectively with thebpposite chains.

2. In a pivoted bucket conveyer, the combination with a pair of chains arranged parallel to each other and conveyer buckets'located between the chains, of cross rods on which the buckets are pivotally supported,

separable brackets in which the ends of the necting means unlting the brac cross rods are supported, and se llarable conets respectively with the opposite chains.

3. In a pivoted bucket conveyer, the combination of a plair of chains arranged parallel to each ot er and formed of links having side bars spaced apart, and conveyer buckets located between the chains, cross rods on which the buckets are pivotally supported, separable brackets in which the ends of the cross rods are supported, and separable connecting means uniting each pair of brackets supporting a rod with the inner said brackets to links of the opposite chains.

5. In a pivoted bucket conveyer,the combination with a pair of chains arranged parallel with each other and formed of articulated links, and conveyer buckets located between the chains, of cross rods on which the buckets are pivotally supported, brackets in which the ends of the rods are supported, separable pins rigidly mounted in the brackets and passing through the links at the places of articulation thereof whereby they serve both as the connecting pintles of the links of the chain and to unite the brackets to the chains.

6. In a pivoted bucket conveyer, the combination with a pair of chains arranged parallel with each other and formed of articulated links, and conveyer buckets located between the chains, of cross rods on which the buckets are pivotally supported, brackets in which the ends of the rods are supported secured to the inner sides of corresponding links in the opposite chains and extending to the rear beyond the ends of such links, pins having tapering portions seated tightly in the brackets, and outwardly extending cylindrical portions, the cylindrical portions of the pins extending through the links at their places of articulation whereby they serve as connecting pintles for the links and also as connecting means for uniting the brackets to the links of opposite chains.

7. In a pivoted bucket conveyer, the combination of a pair of chains arranged parallel with each other and formed of articulated links, and conveyer buckets located between the chains, cross rods on which the as connecting means uniting the brackets to the chain links, and other separable connec- V tions uniting the forwardly extending portions of the brackets with the links of the opposite chains.

8. In a pivoted bucket conveyer, the combination with a pair of chains arranged parallel with each other and conveye'r buckets located between the chains, of cross rods connected with the chains on which the buckets are pivotally supported, separate pieces secured to the ends of the buckets, bearingcarrying sections for the cross rods, the said sections having interlocking parts by which the strains due to the weight of the bucket and its load are transmitted from the upper bearing-carrying section to the lower, and vice versa.

9. In a pivoted bucket conveyer, the combination with a pair of chains and pivoted buckets located between them, ofi cross rods carried by the opposite chains on which the buckets are pivotally supported, pieces secured to the ends of the buckets each carrying a lower segment of a bearing for a cross rod, other separable pieces secured to the ends of the buckets and each carrying an upper segment of a bearing for a cross rod, one of the said ieces being provided, on either side of the hearing parts, with flanges, and the other with hooks ada ted to engage with the said flan es, where y the strains incident to the buc et and its load may be transmitted from one section to the other.

JOHN CLIFFORD MERWIN. 

